NOx removal from gaseous effluents
US-12410108-B2 · Sep 9, 2025 · US
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using sulfuric acid
using sulfuric acid · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C05B11/08 |
| Official title | using sulfuric acid |
| Display label | using sulfuric acid |
| Total patents | 15 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 3 |
| 2024 | 2 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for producing phosphoric acid
US-2025162870-A1 · May 22, 2025 · US
Fertilizer and manufacturing method thereof
US-2025162955-A1 · May 22, 2025 · US
Preparation of an aqueous suspension of phosphate material
US-12221342-B2 · Feb 11, 2025 · US
Production of sulfuric acid employing an o2 rich stream
US-2024417256-A1 · Dec 19, 2024 · US
Process to convert reduced sulfur species and water into hydrogen and sulfuric acid
US-12110601-B2 · Oct 8, 2024 · US
Process to convert reduced sulfur species and water into hydrogen and sulfuric acid
US-2022411940-A1 · Dec 29, 2022 · US
Urea phosphate calcium sulfate granules and methods for producing and using the same
US-2022259116-A1 · Aug 18, 2022 · US
Process To Convert Reduced Sulfur Species And Water Into Hydrogen And Sulfuric Acid
US-2022106691-A1 · Apr 7, 2022 · US
Process to convert reduced sulfur species and water into hydrogen and sulfuric acid
US-11180860-B2 · Nov 23, 2021 · US
Nox removal from gaseous effluents
US-2021147308-A1 · May 20, 2021 · US
Preparation of an Aqueous Suspension of Phosphate Material
US-2020361774-A1 · Nov 19, 2020 · US
Process for the preparation of potassic fertiliser from alcohol distillery effluent (spent wash)
US-10793480-B2 · Oct 6, 2020 · US
A process for the preparation of potassic fertiliser from alcohol distillery effluent (spent wash)
US-2020010376-A1 · Jan 9, 2020 · US
Process To Convert Reduced Sulfur Species And Water Into Hydrogen And Sulfuric Acid
US-2019376191-A1 · Dec 12, 2019 · US